Piston valves

2 and 3 way piston valve.

CHARACTERISTICS

  • All or nothing valve.
  • Perfect sealing with disc ring made of PTFE (polytetrafluoroethylene).
  • Double stem structure that absorbs the impact on the seat.
  • Body and lower seat flange made of stainless steel.
  • Gland packing made of 4 pieces of V-packing that prevents leakage around the stem.
  • Spring with shot-blasting process improves service life.

MODELOS DISPONIBLES

VP3W-FR

VP3W-SR

VP3W-FD

VP3W-SD

SPECIFICATIONS

Nombre del modelo
 3-vías
 VP3W-FR(S) VP3W-SR
 VP3W-FD(S) VP3W-SD
2-vías
 VP2W-FR(S) VP2W-SR
 VP2W-FD(S) VP2W-SD
Fluidos Vapor, Agua Industrial, Gas (N2), Aire, Vacío.
Tamaño (mm) 15A~80A 8A~50A 15A~50A 8A~50A
Operación Normalmente cerrado (NC) Normalmente abierto (NO)
Conexión final Bridado Roscado Bridado Roscado
Material Cuerpo, Brida del Asiento Inferior, Vástago: Acero Inoxidable.
Flujo de Aire
 2.5 ~ 3.5 kg/cm2 (36~50psi)
Temperatura Máx.230°C (446°F)
Presión Max.32kg/cm2 (455psi)
Prueba hidráulica del cuerpo Max.48kg/cm2 (682psi)

a) JIS, DIN and ANSI standards are available.
b) (S) means stainless steel (SUS) flange.
c) To prevent flange cavitation, the user must use a stainless steel (SUS) flange.
d) The option is offered to block the third port with a plug or an under-seat flange.
e) The option without welding flange and without welded body is available.
f) Single stem type is available.
g) Available for high pressure (JIS 30K, JIS 63K).
h) Third port flange is available.

INSTALATION

a) The pipe should be cleaned by methods such as flushing with water before installing the valve.
b) A filter should be installed for good performance and long trouble-free valve life. Filters foreign materials in the pipe.
c) A check valve is installed to prevent reverse flow.
d) The pipeline must have enough space for maintenance of the third port in case of emergency.

4-way piston valve.

CHARACTERISTICS​

  • The valve is connected to and operates a hydraulic water cylinder.
  • Internal design to increase O-ring life.
  • The valve can save the use of other valves.

AVAILABLE MODELS

V4010S-D

V4010S-S

V4020S-D

V4020S-S

SPECIFICATIONS

Model name
 V4010S-S
 V4010S-S
 V4020S-D
 V4020S-D
Fluids Industrial water
Size (mm) 8A - 10A 15A - 20A
Operation Simple action Double Action Simple action Double Action
Final connection Threading
Material Stainless steel
Air Flow 2.5 ~ 3.5kg/cm2 (36~50psi)
Temperature Máx.70ºC (158°F)
Pressure Max.32kg/cm2 (455psi)
Hydraulic body test Max.48kg/cm2 (682psi)

a) PT, NPT and BSPT threads are available.
b) Bronze material is available, but the temperature and pressure must be modified.

INSTALATION

a) The single-acting valve has a spring. b) The double acting valve is springless, therefore it needs 2 air supply lines.

a) The fluid is water.
b) The O ring is easy to damage. A filter must be installed before the valve.
c) The speed of the hydraulic cylinder can be changed according to the water pressure.

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